摘要
高瓦斯低透性煤层的瓦斯抽放,一直是煤矿安全生产过程中的重大技术难题。通过深孔预裂爆破强化预抽高低透性煤层瓦斯的效果考察与分析,讨论了爆破影响半径、煤层瓦斯抽放率等内容。生产实践检验,顺层深孔预裂爆破达到了快速抽放、预防突出、保障安全生产的目的。
Gas drainage in high gassy coal seam with low gas permeability is always an hard solved significant technology problem in the process of safety production. Inspection and analysis of the results of the experiment of deep hole pre-split explosion strengthening discharging gas in high gassy coal seam with low gas permeability, the study discussed the radius of effection of the pre-split explosion, coal seam gas drainage efficiency and so on. Through the test of prodution practice, this measure realize the goal that this technology improved the speed of seam gas drainage, prevented and controlled of mine gas and coal outburst and ensured safety during production.
出处
《中国矿业》
北大核心
2007年第7期68-70,73,共4页
China Mining Magazine
基金
国家发改委"十五"攻关项目子项目
重庆大学学生2005"创新基金"基金
关键词
预裂爆破
低透性煤层
抽放瓦斯
耦合装药
pre-split explosion
coal seam with low gas permeability
discharging gas
coupling charge
